Produce plot by clicking point in a current plot

Nick

2013 2 7

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3 次查看（30 天）

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Hi there,

I am currently trying to write a code which runs a function through two loops for example:

x = [1:10];
y_mtx=zeros(10);
for ii = 1:10
      for jj = 1:10
          y_mtx(ii,jj)=x(ii)*jj;
      end
end
figure(1)
plot(x,y_mtx,'b*-')
hold on, grid on

This produces a plot with 10 lines, each connected by 10 points. And for each point there is a unique ii,jj value which has been used in the calculation. So for example if you were to click on the first point on the third line up, ii = 3, jj = 1. My desire is that when the user clicks a particular point in this plot, it uses these ii and jj values to plot the following:

    % these values taken as example of the first point on the third line being clicked  
    ii = 3;
    jj = 1;
    x_2 = linspace(0.5*x(ii),1.5*x(ii),10);
    y_2 = linspace(0.5*y_mtx(jj),1.5*y_mtx(jj),10);
    z = x_2'*y_2.^2;
    figure(2)
    plot(x_2,z,'r-')
    hold on, grid on

Ideally, I would essentially like to store the plot within the point and only reveal it when the point is clicked, but I don't know whether that is possible. Does anyone have any ideas?

Many thanks,

Nick